All stock Travers Frames come with a PF30 bottom bracket shell, the benefits are: stiffer bottom bracket area, larger weld areas and the ability to run a EBB in any frame.
I realise you can't please everyone, there are some riders who prefer the security of a threaded BB shell. To please everyone I have invested in some rather nice Park tools T47 BB taps, all Travers frames with a PF30 BB can now be threaded to take the T47 (Chris King invented threaded standard).
Don't worry, there are lots of T47 Bottom Brackets available, not just from Chris King.
To add the T47 threads to any new Travers Bikes frame or to your current Travers bike - £50
HAND BUILT TITANIUM FRAMES.